Tapcensus

Water quality for ZIP code 21837

ZIP 21837 covers Mardela Springs in Wicomico County, Maryland, one of 16 ZIP codes in the county. 97 active public water systems serve the county; 46 had an EPA violation in the past three years.

Most likely your provider

Oak Terrace Mobile Home Park LLC MD0220219 · Community water system · Ground water
Serves 30 people Rules violated, past 3 years 3 Last sanitary survey Nov 17, 2025 Distance 1.0 mi
View system details EPA facility report

Other community water systems in Wicomico County

25 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Hebron Woods Mobile Home Park
 250 1 4.4 mi
Town of Hebron
 1,022 0 5.0 mi
Town of Sharptown
 625 1 6.3 mi
Westside Mobile Home Park
 300 0 7.7 mi
Cedarhurst Mobile Home Park
 220 1 8.0 mi
Bennett Mobile Home Park
 60 0 8.9 mi
Steeplechase Waterworks
 395 0 9.0 mi
Naylor Mill Village Mobile Home Park
 180 0 9.1 mi
Oak Ridge Mobile Home Park
 150 0 9.2 mi
Best Rental Housing, Inc.
 68 1 10.1 mi
Town of Delmar
 4,500 0 10.7 mi
Gateway Village Mobile Home Park
 60 0 10.8 mi
Green Meadows Compact Homes
 86 1 10.9 mi
Country Village Mobile Home Park
 38 4 11.3 mi
Colonial Mill Estates Mobile Home Park
 86 2 11.3 mi
City of Salisbury
 30,343 0 11.4 mi
City of Fruitland
 5,907 1 12.0 mi
Boh-Nak Mobile Home Park
 85 1 12.9 mi
Harbour Light Estates Community
 95 2 14.5 mi
Walstons Mobile Home Park
 165 1 15.3 mi
Pine Tree Mobile Home Park
 91 2 17.2 mi
Town of Pittsville
 1,500 2 19.8 mi
Town of Willards
 1,021 3 23.0 mi
Greenway Apartments
 40 0 —
Northfield Apartments
 40 1 —
Non-community systems in Wicomico County (71: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Mardela Goose Creek INC
 607 0 0
Mardela Middle/high School
 735 1 0
Northwestern Elementary School
 310 1 0
Maple Shade Youth & Family Services, INC
 40 0 0
Wrights Market
 82 1 1
Lighthouse Christian Child Care Center
 61 1 0
Lighthouse Christian--Upper Campus
 36 0 0
East Coast Fuel, LLC
 650 0 0
Royal Farms #127
 25 0 0
Green Hill Yacht and CC [clubhouse]
 100 0 0
Green Hill Yacht & CC [satellite Bldg]
 50 0 0
Countryside Market and Deli
 200 0 0
Sandy Hill Family Camp
 200 0 0
Corner Campus
 70 1 0
Wesley Temple Church
 150 0 0
New Dimensions Church
 89 1 0
Power House Church of God
 25 0 0
Delmar Villa Assisted Living
 25 0 0
Word of Life Center
 40 0 0
Pemberton Historical Park
 30 0 0
Joseph House Center
 55 0 0
Billy Gene Jackson Sr. Park
 50 0 0
Pohanka Ford of Salisbury
 60 2 0
Woodlawn Family Camping
 100 0 0
Pohanka of Salisbury, Inc.
 214 1 0
Thirstys Deli
 25 1 0
Transteck Inc.
 56 0 0
Boonies Restaurant and Bar
 70 1 0
Wicomico Yacht Club
 30 1 0
Christian Community Child Care Center
 45 1 0
Faith Baptist Church & School
 125 1 0
Cedar Hill Park
 25 0 0
Southbound Alley
 100 1 0
Hunan Palace
 50 1 0
Salisbury Church of Lds
 240 2 0
Wicomico Day School
 300 2 0
Dollar General #14710
 50 1 0
Crown Sport Center
 400 0 0
Salisbury Christian School
 750 0 0
Christ Umc
 500 0 0
Schumaker Park
 30 0 0
Church of God of Prophecy
 80 0 0
Red Roost
 325 0 0
Perdue Farms Inc. Main Office
 400 0 0
Perdue Farms Inc. Feed Mill
 400 0 0
Nutters Crossing Clubhouse,link Food Srv
 300 0 0
Express Lane INC
 100 1 0
Salisbury School
 220 2 0
Winterplace Market
 500 1 0
Nutters Crossing Gc Satellite Building
 200 0 0
All non-community systems
About this data

Water systems are matched to Wicomico County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.

ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Maryland records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.